Gasoline dispensing apparatus



Get. 15, 1940-.

E c. BABER 2217,6622

GASOLINE DISPENSING APPARATUS Filed April 28, 1936 5 Sheets-Shes; l-

Get 15, 1940. E. c. BABER GASOLINE DISPENSING APPARATUS 5 Sheets-Sheet 2Filed April 28, 1956 0st. 15. 1940. E c, BABE-R GASOLINE DISPENSINGAPPARATUS 5 Sheets-Sheet 3 Filed April 28, 1956 E. E5, 1949. E CJBABERGASOLINE DI'SPENSING APPARATUS Filed April 2a, 1956 5 Sheets-Sheet 4 E.C. BABER GASOLINE DISPENSING APPARATUS I Filed April 28, 1936 5Sheets-Sheet 5 Patented Oct. 15,1940

28 Claims.

My invention relates to a combination coin controlled and manuallycontrolled liquid dispensing apparatus and as at present the principalfield of use appears to be for dispensing gasoline, I have designatedthe invention as a gasoline dispensing apparatus.

One of the main objects and features of my invention is a coin operateddevice which controls the operation of the liquid dispenser and is ofsuch a type that it may be installed with a number of diiierent types ofliquid measuring and dispensing appliances, these being known in thetrade as gasoline pumps. For convenience of descriptionthe device andthe combined apparatus or gasoline pump mechanism. In the present set upof my invention in view of the fact that most of the so-called gasolinepumps are electrically actuated, that is a motor is operatedelectrically, the motor driving a pump and the gasoline flowing througha meter, the coin actuating mechanism is designed to operate an electricswitch for closing and opening the circuit of the motor. A

furtherfeature of my invention is that the release of the coin-actuatingmechanism is utilized to close the electric switch of the motor circuit,

in connection with the gasoline meter the flow of gasoline is shut oflafter dispensing an amount corresponding to the purchase price of aparticular coin used in the machine.

These coin actuated gasoline dispensing pumps be manually controlledwhen there is an attendant at a gasoline dispensing station or when theattendant is absent for instance, over night, the coin controlled partof the .mechanism may be brought into operation to dispense the gasolinein accordance with the value of different coins.

Another main object and feature of my invention is a machine which willoperate on coins of difierent value, for instance using ten cent pieces,twenty five or fifty cent coins designated hereunder as dimes, quartersand half dollars, each of which permits the'operation of the device anddispensing of gasoline to the value of the individual coin if only onecoin is inserted in one of the coin chutes. The machine is provided witha plurality of coin chutes, thus in the instance described there beingachute for the dimes, one for the quarter dollars and one for the halfdollars. Manifestly if desired, there could be a chute for niclzels andanother chute for dollars, but such would unnecessarily complicate themachine.

Another object and feature of my invention is 2,217,662 GASOLINEDISPENSING ArPAnATUs Emil C. Baber, Los Angeles, Calif., assignor toLyman Wood Davis,

is therefore designated as a gasoline dispenser then by means of ameasuring register actuated have a field of operation in which the pumpmay PATENT I OFFICE Los Angeles, Calif.

Application April 28, 1936, Serial No. 76,786

that coins for instance of the three values, that is of all the valuesforwhich the machine is designed, can be inserted in the respective coinchutes and the machine then operated in which case there is firstdischarged a quantity of gasoline to thevalue of a dime, on a secondoperation to the value of the quarter dollar and on the third operationto the value of the half dollar. A further detail feature is in theemployment of a manually operated starting device such as a lever sothat the person making the purchase, after inserting the coins, byoperating this lever or other device, starts the operation for each ofthe coins used.

Another object and feature of my invention is that with my machine aplurality of coins of the same value may be placed in the proper'coinchute for such value, therefore for instance, if a number of dimes areused the purchaser may start the machine to dispense separate.quantities of gasoline corresponding in value to each of the coinsuntil all of the dimes have been exhausted. Then if he has placed aplurality of quarter dollars and/or half dollars, the purchaser startsthe machine to dispense individual quantities correspending to thesecoins.

In connection with the use of a plurality of coins of the same value,each in its own chute, a detail feature of my invention relates to aretaining device which permits only the lowermost coin of a group tofunction in the control of the switch, then as such lowermost coin isdischarged to a coin receiving box, the coin next above comes intooperation, the remaining coins being retained until in a sequence all ofthe coins of the one value have been utilized. This feature makes itnecessary that the. machine dispense to the purchaser gasoline to thevalue of the coins inserted in the coin chutes and as the purchaser mayinsert a suficient number of coins for the amount of gasoline he wishesto purchase before actuating the machine, the purchaser may quicklyobtain the full quantity of gasoline without having to insert a coin foreach operation of the machine.

A further main object of my invention relates 5 to the mechanism forchanging the price value so that difierent quantities of gasoline willbe dispensed using the coins above designated, this quantity dependingon the price per gallon of the gasoline; thus manifestly when the priceis low the purchaser secures a greater quantity for each individual cointhan he would if the price were high. A feature of this price regulatingmechanism resides in the simplicity and positive features by which theexact quantities to be dispensed at any standard price may be calculatedand set on a register. For convenience in my present machine I have madechanges of price in one-half cents, starting with a low price of fivecents per gallon and having the present machine graduated in one-halfcent values to a maximum price of forty cents per gallon. Of coursemanifestly these values may be changed.

A further main feature of my invention is an inter-linking of the pricegraduated dispensing register which is operated by the gasoline meterwith the switch mechanism which is set in closed switch position by thecoin actuated mechanism so that when the exact quantity corresponding toa particular coin has passed through the meter and actuated theregister, the register causes the opening of the switch and thus astoppage of the motor, the meter and hence the flow of gasoline.

A further feature of my invention as it relates to the price register isin the employment of a drum or cylinder which is mounted to havevertical movement controlled by a screw feed. This cylinder is designedto make one: rotation for each gallon of gasoline dispensed and in mypresent machine the length of the drum is such that it may make tenrotations for a given movement .in an axial direction and thus dispenseten gallons, should a coin be inserted to the value of ten gallons.

Another detail feature is that the use of a drum or cylinder of thistype which both rotates and has a movement in an axial direction residesin having a large number of sockets in the periphery of the drum and inthese sockets are placed trigger operating pins, one for the dime,another for the quarter and a third for the half dollar. The varioussockets are numbered in accordance with calculations made as to thequantity to be dispensed for different prices, then by means of aprepared chart or table the attendant may place these trigger operatingpins in the correct socket.

One of the difficulties encountered in coin controlled gasolinedispensing pumps resides in a flow of gasoline due to pressure sometimescalled coasting of the machine when the gasoline should be shut oif. Iovercome this difficulty by employing a positively operated valve whichvalve is open in conjunction with the closing of the circuit through thecontrol switch and is automatically closed at substantially the time theswitch is open so that at the instant the current of the electric motoris opened, the valve closes and prevents any further dispensing of thegasoline which might occur by the coasting rotation of the motor or by abuilt up pressure in the pump, thus with my invention I secure amoreaccurate dispensing of the gasoline as to the quantity for theparticular coin used.

My invention is illustrated in connection with the accompanying drawingsin which Figure 1 shows the upper part of a so-called gasoline pump, oneof the side panels being cut away to expose in elevation part of themeter, a clutch, the quantity registering drum, a side elevation of thecoin controlled and actuated mechanism and other detail.

Figure 2 is a horizontal section on the line 2-2 of Figure 1 downwardlyin the direction of the arrows showing the top of the quantityregistering drum and a plan of the coin controlled mechamsm.

Figure 3 is a vertical section on the line 3-3 of Figure 2 in thedirection of the arrows showing part of the quantity registering drum inelevation and a side elevation of a part of the coin controlledmechanism.

' the quick acting clutch.

Figure 6 is a vertical section on the line 66 of Figure 3 in thedirection of the arrows and may be considered substantially as anelevation of the inside portion of the coin controlled mechanism.

Figure 7 is a horizontal section on the line 1-1 of Figure 6 in thedirection of the arrows.

Figure 8 is a vertical section on the line 88 of Figure 1 or 3 in thedirection of the arrows and may be considered an elevation partly brokenaway of the outside of the coin controlled mechanism.

Figure 9 is a vertical section on the line 9-9 of Figure 8 taken in thedirection of the arrows, illustrating a coin with the sliding membersactuated through the medium of the coin.

Figure 10 is an end elevation of the part of the coin controlledmechanism taken in the direction of the arrow ID of Figure 8illustrating the main electric switch control mechanism in the openswitch position prior to a downward movement of the coin slides whichare manually operated.

Figure 11 is a view similar to Figure 10 showing the main switch controlmechanism in its look I positionfor an open switch when the coin slidesare in their lowermost position and prior to their manual release for areturn movement.

Figure 12 is a view similar to Figures 10 and 11 showing the position ofthe switch actuated mech anism in the position for a closed switchcircuit, this mechanism being held in this position during thedispensing of gasoline.

Figure 13 is a vertical section on the line |3-l3 of Figure 8 on areduced scale through the coin chute of one of the coin slides.

In my invention, referring first to Figure l, a suitable stand orhousing I I is utilized and which may be of a common type used inso-called gasoline pumps. In this stand is located a liquid meter l2.This meter receives. liquid from a liquid pump and the pump is usuallyactuated by an electric motor. My invention as illustrated is dependenton controlling the electric motor for operating the pump and hence themeter, my coin controlled mechanism being designed for operation toclose the main electric switch supplying current to the motor and thequantity registering device being operative to release part of the coincontrolled mechanism to cause the closing of the switch. In theillustration of Figure 1 the gasoline is discharged through a dischargepipe I3 from the meter which leads upwardly through a control valve 14and is then led from the valve by a pipe l5 to a flexible hose l6 andthen to a nozzle I! used for discharging the gasoline into a tank. Thisnozzle has a normally shut off valve which is opened by actuating thefinger grip lever l8. A vertical shaft l9 leads upwardly from the meterand is connected to a clutch designated by the assembly numeral 20 andfrom this clutch there is an upper shaft 2! which operates the hands 22operating over a dial 23 to limit the quantity of gasoline dispensed atany operation of the machine. These hands may be returned to the zeroposition by any standard mechanism now used for so returning the hands.

The coin actuated mechanism designated generally by the assembly numeral30 employs a chute slides 43, 44

coin inserting opening 3| (note Figure 1) from which the coin dropsthrough any suitable coin guide 32 and passes through an opening 33 inthe top plate 34 of the main coin slide mechanism designated by theassembly numeral 35 (note particularly Figures 9 and 13). This coinslide mechanism is mounted in a frame having the top plate 34, oppositeside plates 36 and 31 (note Figures 6, '7, and 8) and a bottom plate 38.The side plates 36 and 31 each have an inwardly extending longitudinalguide rib 39 adjacent the outside edge and an internal guide plate 40and-.extending between the top and bottom plates 34 and 38, there areconnected vertical guide plates M and 42 (note Figure '1). Between themarginal guide plates 40 and the vertical guide plates coin chute slidesdesignated 43, 44 and 45 (note Figure '1). Each of these has a chutedesignated 46, 41 and 48 for coins, 46 being for dimes, 41 for quarterdollars and 48 for half dollars. It is necessary to lead the coins tothese various chutes that there are three of the insert open: ings orslots 3|, one for each coin and three of the coin guides 32. The bottomend of each chute for the coins has a curved end 49 (note Figures 9 and13) which divert the coins laterally. These coin chute slides 43, 44 and45 50.0n their opposite sides, engaging the various fixed plates to,- 4|and 42 These slides are normally held in their uppermost position bytension springs which have their upper ends secured to eyes 52 on thetop plate 34 of the frame construction 35 and their lower ends connectedto projecting studs 53 adjacent the lower portion of each of the slides43, 44 and 45, there being two springs shown for each coin slideconstruction.

Cooperating with the vertically slidable coin and 45, there is a commondepressing slide designated by the assembly numeral 60 (noteparticularly Figures 7, 8 and 9). Said depressing slide comprisesoutside vertical frame members 6| on each side, and a top transverseplate 62 having rubber bumpers 63 thereon to contact the top plate 34 ofthe frame 35. There is a substantial horizontal block 64 at the bottomconnecting the side frames 6| Figure 9). The inner surface 61 of thehorizontal block 64 is vertical except for the coin notches 68. Thesecurved notches are diagonally opposite the curved ends 49 of the severalcoin chutes. Thin cover plates the slide chute guides 43, 44 and 45forming edge covers for the coin chutes 46, 41 and 48. Therefore whencoins are dropped in any one of the chutes they lodge in the coin pocketdesig nated (note Figures 9 and 13) between the upper block 64 and thelower portion of the coin slides. Vertical rods 1| and 12 are connectedto the transverse block 64 and extend downplate 38 of the frame platethere is a tapered bar 14' for the purpose of deflecting coins as theyare discharged into a coin receiving box. A cross head in the form of aplate connects the two rods TI and 12.

.The manually operated device to start the actuation of the machines isdesignated by the assembly numeral 80 (note Figures 1 and 8). Thisutilizes a hand actuated lever 8| which is secured to a shaft 82which isjournaled in a suitable structure on one side of the stand-or to which4| and 42, there are three are formed with laterally extending guideribs.

and having outside cover plates 65 and 66 (note I 69 are provided on andI01 and to pins housing II, preferably the side having the hose I6. Arocking arm 83 is secured to the shaft 82 preferably by means of asleeve 84 pinned on the shaft and a roller 85 is carried by the end ofthe arm and rests on the top of the crosshead 15. Therefore, when thereis a coin in any one of the coin pockets 10 and the lever is operated todepress the cross-head 15 by the medium of the rods 1| and 12, the slidedepressing frame 60' is moved downwardly and by pressure transmittedthrough a coin in a pocket, gives a downward movement to. the particularcoin chute slide, either 43, 44 or 45, according slide contains thecoin; therefore the machine may be operated by a single coin in one ofthe coin slides. f

Detent devices for retaining coin-chute slides 43, 44 or 45 in theirlowermost position are designated by the assembly numeral 90. (noteparticularly Figures 3, 9, 10, 11 and 13). Each of these slides has adetent thereon indicated 9| for the dimes, 92 for the quarter dollarsand 93 for the half dollars. Each of these has a wedging front edge 94,these being constructed on a bevel and each has a horizontal uppersurface 95 and thereby each has a projecting upper corner 96. It will benoted by reference particularly to Figure '1, that the detent 9|projects further from the face of the coin chute slides than the,quarter dollar or the half dollar having the least projection. Forconvenience of assembly and locating these detents they are attached tothe side of each of their respective slides, 43, 44 and 45, as shown inFigure '1. These slide-detents are designed to co-act with a rockinglatch designated I00; such latch has end pivot pins in the form ofscrews or bolts IOI, which are journaled in projecting ears I02, thesebeing preferably constructed on straps I03 projecting from the lowerpart of the side plates 86 and 31. There are short arms I04 and I05secured to each of the pivot pins preferably by having such pinsscrew-threaded therein as shown in Figure 6 and at the upper end of eachof the arms I04 and I05 there are parallel tilting plates I06 and I01,the manner of attachment preferably being by having upwardly projectingears I08 (note Figure 9) on the arms I04 and I05, a downwardly extendingtongue I09 on each of the plates I06 and I01 and a pivot pin 0 extendingthrough the ears of the tongue. The plate I01 has a downwardly extendingprojection or finger III which engages the inside of the arm I05 so thatthis arm is only free to rock on' it's pivot in the direction of thearrow II2 (note Figure 6). A tension spring .3 is secured to an eye 4 atthe upper inside portion of the plate I01 and to a second eye |I5attached to the inside of the arm I04; therefore this spring normallyholds the plate I01 in its upward position.

The plates I06 and I01 are connected by a 2 latching bar 6 (note Figures6, '1, 9, 10, 11 and;

wardly through perforations 13 in'the bottom 35. At the front of th s13). The connection is preferably\,by having a pair of spaced ears 'I I1on each end of the bar 6, interengaging with an upper tongue 8 on eachof the plates I06 and I01 and these being connected by pintle pins 9(note particularly Figure 6). continuous corner notch I or a series ofthese notches designed to engage the upper corner 96 of each of thedetents 9|, 92 and 93 (note Figures 11 and 13).. Retraction springs I2|are connected by pins I22 to each of the plates I06 I23 attached to thesides This latching bar 6 has-either a springs 5I.

It is manifest project the detent 93 for the half dollars; the detent 92for the quarter dollars is intermediate. latching bar H6 is providedwith releasing notches I24, I25 and I26 (note Figure 7) positionedcontiguous to the detents 9I,

respectively, and on the side remote from the top sur- This stud has avertical abutment shoulder I3I and a sloping rear side I32.

this purpose The switch, however, is actuated for closing and openingsame by a reciprocating rod I42. is is piv- I43 and the link is I44.This lever is L45 the frame 35 preferably from the side plate 31 (noteFigure 8). This trigger lever has a projecting nose I46 and is normallypulled downwardly by a tension spring I41 connected at I48 to thetrigger lever and at I49 to a pin projecting from the slide plate 31.The link I43 is shown as pivotally connected to the trigger lever at I50intermediate the pivot stud I 45 and the connection of the spring I41.This lever has a notch I 5I which is formed adjacent remote from thenose I46. A pivoted hook I52 is pivoted at I53 on a plate or the likeI54, attached to the side plate 31; such hook has a shoulder I 55adjacent its upper end adapted to engage the nose I46 of the triggerlever I44 and by means of the tension spring I56 which is attached atI51 to the upper end of the hook and at I58 to the side plate 31, thedetent arm is constantly under a pull towards the trigger lever. Whenthe depressing slide otally connected to a link connected to triggerlever 92 and 93,,

designated 60 is in its uppermost position a cam plate I59, which issecured to the horizontal block 64 or which engages the hook I56 on thefirst release of the wedging lug I 6| brings the shoulder I 55 over thenose I46 of the trigger I44 and retains such trigger in the position ofFigure 11. When the trigger is in the positions of Figures 10 and 11,the switch MI is open, that is, there is no electric connection forenergizing the electric motor for driving the fluid pump.

Each of the coin slides 43, 44 and 45 has a projecting pin I65 indicatedat I65, I66, and I61 (note Figure 6) so that each of said pins engages across bar I68 which is secured to the outer and I10, one of which ispivoted on the stud I45 extending from the plate 31 and the other ispivoted to a similar stud I1I attached to the side plate 36. The arm bya retraction-spring 202 acting thereon through a lever I91 and aconnected rod-link I96 to yieldingly maintain the arms I69 and I 19 intheir uppermost position. The arm I69 is indicated as having a pin I 12projecting therefrom. Therefore, on the downward movement of thedepressing slide 60 which carries any one of the coin tion to the spring202 and as the slide 43, 44 or 45, which carries the coin, is helddownwardly by the medium of the latching bar II6 engaging one of thedetents 9|, 92 or 93, the pivoted arms I69 and I10 are retained in theposition of Figure 11. On release of the coin when the operator of themachine again allows upward movement of the operating arm 8|, the coindepressing slide 60 with the cross block 64 moves upwardly againbringing the cam plate I59 into action against the wedge lug I6I,thereby moving the hook I52 outwardly from the position of Figure 11 tothe position of Figure 12. action causes the release of I44 by theshoulder I55 of the hook being moved away from the nose I46 of thistrigger lever, then the tension spring I41 gives a quick downwardmovement to this trigger lever I44 and hence through the medium of thelink I 43 and the rod I42 operates the main switch I4I which snaps toits closed circuit position, the electric motor is then energized foroperating the pump for delivering gasoline or other fluid through themeter to the discharge nozzle I 1.

After a pre-determined quantity of liquid has been dispensed therespective detent is released to allow upward movement of the coinslides, 43, 44 or 45. This action so far as the latch mechanism isconcerned, is accomplished through an end pressure in the direction ofthe arrow I15 (note Figures 6 and 7) effected by the engagement of'aprojecting portion of a rotatable registering drum 230, hereinafterdescribed, with the shoulder face I3I of the stud I28. Said stud issecured to the latching bar II6, which bar as above mentioned hasengaged one of the detents 9|, 92 or 93, as shown inFigures 11 and 13;therefore, when the latching bar is forced in the direction of the arrowI-15 itswings the plates I06 5 and I01 on their pivots in the directionof the arrow H2 at Figure 6. This movement is sufficient to align one ofthe notches I24, I or I26 on latching bar I I6 (note Figure '1) with theparticular detent engaging such latching bar, there- 10 fore as theengaged detent may move upwardly through one of these notches, theparticular slide, either 43, 44 or 45, again moves upwardly, thisadmitting of the upward movement of the pivot arms I69 and I10 throughthe action of the spring 15 282 which brings the pin I12 attached tosuch arm, into the notch I5I of the trigger lever I44. This engagementis shown in Figure 12 and moves the trigger arm upwardly to the positionof Figure 10, thus stretching or tensioning the pulldown spring I41. Asthis action pulls upwardly on the rod I42, the operation is to open theswitch I4I which by a mechanism in the switch snaps quickly to its opencircuit position. Hence after the pre-determined quantity of liquid hasbeen dispensed, the electric motor is quickly de-energized.

As above mentioned in the objects of the invention, a person desiring topurchase gasoline may deposit a number of coins of the same value in anyone of the chutes designed for such coin, but

quantity of gasoline corresponding in value to the lowermost coin in thecoin chute which coin only is released. The retention mechanism for theother coins in the chute is designated as a coin retainer device havingthe assembly numeral I80 (note particularly Figures 6, '1, 8 and 9). Inone side of each of the coin sliding chutes 43, and 45, adjacent thechutes 46, 41 and 48, there are perforations indicated at I8I, I82 andI83 (note Figure '1). There are three similar coin retaining pinsdesignated I84 I note Figures '1 and 8), each attached to a leaf springI85 and such leaf 'spring being secured as indicated at I86 to a side 45of the particular coin chute with which it cooper-v ates. Each of thesesprings has a U shaped retraction yoke I81 (note Figures 6 and 7)attached thereto and designed to be engaged by the lower tapered end I88of a firmly fixed finger I89, attached as indicated at I98 to the topplate 34 of the frame construction 35, hence such fingers which arequite stiff, are prevented from movement.

The operation of the coin retainer device I88 is as follows: When thecoin slides 43, 44 or 45 are in their uppermost position as shown inFigures 8 and 9, the yoke I81 on the particular spring I85 is engaged bythe tapered finger end I88, this bending the spring outwardly andretracting the retaining pins I84 from the particular perforation ISI,I82 or I83 as shown in Figures 7 and 8, therefore coins may drop freelyin the coin chutes until engaged in the coin pocket 18. Then, on thedownward movement of the coin chute slides 43, 44 or 45 through themedium of the depressing slide structure 68, the yoke I81 slidesdownwardly on the tapered finger end I88, thus allowing the pin I84 tobe thrust in one of the perforations I8I, I82 or I83 into the positionshown in Figure 13 to engage a coin above the lowermost coin and hencesupport all the rest of the coins in this particular chute so that whenthe lowermost coin is discharged, the remaining coins are held inposition until the coin slides move upwardly when the finger end I88again comes into operation to coins in any on actuation of the handlever 8| he purchases a retract the pin I84 and release the stack ofcoins in any particular coin chute so that the lowermost coin againcomes into a coin pocket 10, the remaining coins thereabove being heldin the coin chute. 5 As above mentioned in the objects of the inven-'tion, it is not necessary for a person operating the machine to insertonly one coin of any denomina tion at a time, but he may insert coins oftwo or more of thedenominations and moreover the 10 operator, as abovedescribed, may insert a stack of one chute. However, in the dispensingof the liquid on each operation of the starting lever 8I, liquid to thevalue of a single lowest value coin in the machine actuates the 15machine first and then in succession all of the lowest value coins areused up, the other coins being retained irrtheir coin chutes, forinstance, presuming dimes, quarter and half dollars are inserted intheir respective stacks, then on the 20 downward movement of thedepressing slide 68, as there is a coin in each coin pocket, all of thecoin slides 43, 44 and 45 are depressed. However, as the detent 9I forthe dimes projects a greater distance from the slides than the otherdetents 25 92 and 93, the rocking latch device I08 having the latchingbar I I6, is only engaged by the detent 9I on the dime slide, thereforeonly this slide is held downwardly when the lever 8| is moved up and thequarter and half dollars are retained in their 3 particular coin pocket18 due to the depressing slide 68 moving upwardly with the quarter andhalf dollar slides 44 and 45. The machine is actuated or started eachtime by the lever 8| until all of the dimes are exhausted, then thequarter dollars come into action, the dime slide 43 remaining stationaryin its upper position as there is no coin to depress such slide.The'machine is then operated movement of the lever 8| for each'of thequarter- 4 dollars until the stack of quarter dollars is'used up, themachine at each operation vending a quantity of gasoline correspondingto the value of the coin. Then when all the quarter dollars have beenused up, the half dollars operate to control the machine, in which caseboth the dime and quarter dollar chutes 43 and 44 remain stationary intheir uppermost position. Then, when the half dollars are exhausted themachine cannot operate until a further supply of coins are 50 placed inthe machine, either by the same or another operator.

The control valve I4 is operated by the following mechanism: The arm I18is constructed in the manner of a bell crank, having an upwardly 55extending crank arm I95 (note Figure 1) which is pivotally connected bya stiff rod I95 to a valve actuating lever I91; this lever is pivoted atI98 on ,a support I99 attached by a clamp or other device,

280, to the body of the valve. The valve stem 20I 60 is connected to thelever I91. A retraction spring 202 connected to the lever I91 and to afixed part of the frame or casing structure II normally retracts thislever and maintains the valve in its closed position. Therefore, as soonas any one of 65 the coin chute slides 43, 44 or 45 moves downwardly,one of the pins I65, I66 or I61 causes the operation of this bell crank,having the arms I10 and I95, this giving a thrust on the rod I96, opensthe valve. This valve is therefore automatically (0 closed as soon asany one of these pins moves upwardly bymeans of the retraction spring282. When it is desired to operate the gasoline pump manually, that iscutting out the coin control mechanism, the operator may remove a handhole plate 205 in the housing (note Figure 1) and pull on the link 206which is connected to the lever I91. This link normally rests and slideson an upturned finger 201 mounted on a stand 208 secured to a fixed partof the machine, The link has an eye 299 which fits over a pin 2I0 on theupper part of the stand, therefore, when the link is pulled towards theassembly numeral 230. clutch 20 is actuated through the medium of aclutch operating lever 23I (note Figures 1, 3 and 4). This lever ispivoted on upright posts 232 which extend downwardly from the partitionplate or frame 233 located in the housing above the clutch. This leverhas a yoke end 234 with inturned fingers 235 engaging a collar 236 onthe sliding disk member 231 of the clutch. The opthe lever 238 has threeupwardly extending studs 239 which pass upwardly through the bottomplate 38 and are positioned to be engaged by any one of the coin chuteslides 43, 44 and 45 when I9 has a disk 24I which there are a asindicated at 253.

A frame formed with a plurality of posts 260 extends upwardly from thepartition plate 233 and has an upper frame 26I to which is secured afixed nut 262. This nut has square threads and meshes with the hollowscrew 263. This screw 18 square on its inside surface and slidesvertically on the squared hollow shaft 250. The

upper part of the screvFhas a head 264 in the form of a disk and to thisis attached the drum 265,

lowermost position and held in such position,

43, 44 and 45 is in its there is a driving connection between thevertical shaft I9 from the meter through the closed clutch to the hollowshaft 250. As this shaft is square it drives the screw 263 and as thisscrew meshes with the stationary nut 262, such rotation gives a downwardmovement to the drum as a v The relationship is such that the metershaft I9 makes one complete rotation when one is no positive drive tothe squared hollow shaft 250, the counterweight 219 giving a tension onthe cable 211 tends to unwind sucncable from the reel 215. Such openingof the clutch 20 is caused by the weight of the sliding member 231engaging and spreading the dogs 242 when the upward travel of the coinchute slides release the lever This rotates the drum 265 in a reversedirection and causes the screw 263 to thread or move the drum upwardlyrelative to the stationary screw 262 and bring this drum into theelevated position as shown in Figure 3. is brought to a positive stop intion by means of a stop arm 285 (note particuhas a proJecting end 286which is contacted by a rubber stop lug 281 secured to the circular head266 of the drum 265.

A suitable manner for graduating the cylin- 'I'hese studs are insertedin screw threaded sockets 290. Manifestly as the drum 265 movesdownwardly in dispensing gasoline the dime stud 29I will be in thelowermost position on the drum, the quarter dollar stud 292 in the nexthighest position and the half dollar stud 293v in the highest position.

the stud I28 on When the quarter dollar the stud I28 projects its thelatching bar II6.

chute 44 is functioning medium distance and is stud 292 on the drum.given to the stud I 28 when the half dollar chute line. 'to dispense tengallons of gasoline, the drum the complete periphery of the drum. Arotation of the drum from one line to another thus represents thedispensing of one cubic inch of gaso- As the drum is designed to rotateten times is marked with a series of'horizontal peripheral lines 31,there being ten of such lines and as the drum moves downwardly passingfrom one horizontal line to another and making acomplete rotation, onegallon of gasoline is dispensed for each horizontal line the drum movesdownwardly. An initial or starting vertical line 308 is established onthe drum and then calculations are made as to the'rotation of the drumto dispense gasoline in accordance with various prices. When the properlocation is made the threaded sockets 290 are made in the drum. Thesesockets are numbered in any suitable manner, numbers impressed on thedrum, and then a chart is made, which chart may be secured to a suitableplace inside of the cabinet, covered by a'door, which maybe opened sothat an attendant may place the studs 2%", 29 2- and 293 in their propersockets in accordance with the basic price of the gasoline. An exampleof a portion of a chart is given herecents per gallon. The chart howevershould have changes in half-cent increases in price. This is merelyillustrative of the manner in which a chart may be prepared, as it willbe noted a numof the sockets are omitted. The numerals indicated foreach of the studs or pins on the drum indicate the particular socket inwhich the ten cent, quarter dollar and half dollar stud will be placedto' vend an amount of gasoline corresponding to the equivalent prices:

Various changes may be made in the details of the construction withoutdeparting from the spirit or scope of the invention as defined by theappended claims.

I claim: 7 1

1. In a fluid dispensing mechanism having an electric switch for closingan electric circuit for initiating and continuing"-the flow of a fluid,said switch when opened discontinuing the flow of the fluid, an outletvalve for the fluid, a coin controlled mechanism having a first and asecond slidable part forming a coin pocket therebetween inunder having aprice range of five to forty ber of the intermediate prices and thenumbers whereby on a sliding movement of the first part the second partis moved through the engagement of the coin in the coin pocket, apivoted arm connected to the valve, means on the second sliding part tomove the arm downwardly to thereby open the valve, a pivoted triggerlever connected to the same pivot as the pivot of the arm, an operativeconnection between the lever and the switch, a spring connected to thetrigger lever tensioned for closing the switch, a hook device pivoted ona. fixed structure, a wedging device on the first sliding part toholdthe hook device from engagement with the trigger lever, a spring toengage the hook device and the trigger lever on downward movement of thefirst sliding part, means to retain the second sliding part when moveddownwardly with the valve open, means to return the second sliding partto, its initial position and release the coin from the pocket, thereturn of the first sliding part releasing the hook device from thetrigger whereby the spring closes the switch, means operative afterdispensing a predetermined amount of fluid to release the second slidingpart, means to return the second sliding part to its initial positionand at the same time move the pivoted arm and the trigger lever to openthe switch.

2. In a commodity dispensing machine having an electric switch forclosing an electric circuit for initiating and continuing the dispensingof the commodity, said switch when opened discontinuing the vending ofthe commodity, a switch actuating means including in combination amovable slide having a detent on a first part, means operative on asecond part of the slide to move said slide from a first to a secondposition, a latch to engage the detent when the slide is in the secondposition, a pivoted arm movable with the said slide from its first toits second position, a pivoted trigger lever, an operating connectionfrom said trigger lever to the switch, a pivotally mounted hook deviceengageable with said trigger lever, a cam plate connected to the secondpart of the slide and engaging said hook device to hold the same out ofcontact with the trigger lever when the slide is in its first position,means to engage the hook device and the trigger lever on the movement ofthe slidefrom its first to its second position and thereby retain thetrigger lever in its initial position with the switch open, a springengaging the trigger lever and tensioned to move said trigger lever to asecond position to close the switch, the second part of the slide havingthe cam plate beingv movable from its second to its first position toengage the hook device and. release the same from the trigger leverwhereby the spring moves the trigger lever from its first to its secondposition to close the switch, means operative after dispensing apredetermined amount of the commodity to release the latch from thedetent, means to return the first part of theslide having the detentfrom its second to its first position whereby the said pivoted armreturns to its first position, interengaging means between the pivotedarm and the trigger lever to return the trigger lever to its firstposition and hence open said switch.

3. Liquid dispensing apparatus, comprising a manually reciprocalslide-frame, a coin-slide depressible therewith through theinterconnection of a coin, a spring tending to retract said coin slide,means to retain said coin slide in its lowermost position, a pumpincluding a liquid discharge pipe; a valve in said pipe, electricalmeans to actuate said pump including a controlling switch, a springpressed trigger having operative connections to open and close saidswitch, a spring pressed arm retaining said trigger in its open switchposition and engageable by said coin slide in its downward movements torelease said trigger, retaining devices for said trigger engageabletherewith on the downward movement of the frame, means operable on thereturn movement of the frame to free said trigger from said retainingdevices to 'close said switch, link connections between said arm andsaid valve to open and close the same upon the respective downward andreturn movements of the coin slide, and means to release said coin slideupon the pumping of a predetermined quantity of liquid whereby thereturn movement of said coin slide admits of the like movements of saidarm and trigger and the opening of saidswitch.

4. In a coin controlled mechanism, a structure having a coin chute slidewith means c0- operative therewith to form a coin pocket, a wedge-likedetent connected to the slide having a sloping surface with a shoulderat the top, a latching device having a pivot on which it oscillatespositioned transverse to the said slide, said latching device having alatching bar, means to depress the coin chute slide when a coin is inthe coin pocket, means to retract the latching device to engage thedetent whereby the Wedge surface of the detent oscillates the saidlatching device outwardly, the retracting means engaging the latchingbar with the shoulder of the detent, the latching bar having an openingadjacent the detent, a releasing means movable to engage the latchingbar, said bar being movable transversely of the detent to disengage theshoulder from the latching bar, and means to return the coin chute slideto its original position on release of its detent.

5. In a coin controlled mechanism, a guide structure having a movablecoin chute slide therein, a depressing slide slidably mounted parallelto the coin chute slide and forming therewith a coin pocket to receive acoin, means to depress the depressing slide and when there is a coin inthe pocket thereby depress the coin chute slide, a retaining pinresiliently mounted on the coin chute slide, a retracting means forretracting the pin from the coin chute when the coin chute slide is inits elevated position but to release said pin when the slide movesdownwardly, the said pin being positioned to extend into the said slideand support one or more coins located in the coin chute above the coinin the coin pocket, and means for temporarily retaining the coin chuteslide in its depressed position while the depressing slide movesupwardly to release a coin from the coin pocket, the said pin beingretracted when the coin chute slide moves upwardly to permit thelowermost coin now in the chute resting thereon to drop into the coinpocket.

6. Liquid dispensing apparatus comprising in combination a two part coincontrolled mechanism arranged to be depressed through theinterconnection of a coin, a latch to retain one part of said mechanismin its depressed position, means to return the second part of themechanism, means to initiate the dispensing of the liquid actuated bysaid second part of said mechanism upon its return, a liquid quantitymeasuring device including a rotatable structure, means for bodilymoving said structure longitudinally of its axis of rotation, adjustabletripping means on said rotatable structure engageable with said latch torelease said first part of the coin controlled mechanism from saidlatch, spring means to return said first part, and means released by thereturn of said first part to stop the flow of liquid.

7. In liquid dispensing apparatus, a plurality of pairs of coin slides,each said pair having a coin chute therebetween and movable in unisonthrough the interconnection of a coin, said coin chutes being eacharranged to receive coins of a different diameter, a detent projectingfrom one of said slides of each said pair at diverse distances ininverse relation to the coin size of the respective chute, and alatching bar common to all said detents and engageable with the furthestextending detent.

8. A commodity dispensing apparatus comprising in combination a coincontrolled mechanism having a setting means employing a plurality ofcoin slides, each having a coin pocket for a coin of a diiTerent value,means to move all of the slides containing a coin in-the coin pocketfrom a first to a second position, each coin slide having a detent, thedetents being of variable length in accordance with the value of thecoin to be received in the coin pocket of each slide, a rotatable andaxially movable drum having a plurality of sockets positioned thereon inaccordance with a series of prices of a unit of the commodity, aplurality of studs, each secured in a socket, the studs being ofdifierent length and corresponding to the coins receivable in the coinpockets, a tilting latch, said latch being positioned to be engaged bythe longest detent of the coin slide moved with a coin in the coinpocket, the detent thereby holding such coin slide in its secondposition, means to dispense the commodity when the coin slide is so heldby the latch, means to rotate and axially move the drum at a rateproportionate to the quantity of the commodity dispensed until a stud onthe drum corresponding to the detent engaging the latch contacts suchlatch, the stud then causing the movement of the latch to release thedetent held by the latch, means to return the released detent 4 and theportion of the slide on which said detent is mounted to its firstposition and means to discontinue dispensing the commodity and means toreturn the drum to its first position.

9. In liquid dispensing apparatus, a pair of coin 5 slides having a coinchute therebetween and movable in unison through the interconnection ofa coin, one of said slides having a detent, and a pivotally mountedlatch engageable with said detent to retain the slide in its advancedposition, said latch being spring pressed inwardly to engage said detentand movable laterally to release the same.

10. In liquid dispensing apparatus, a pair of coin slides having a coinchute therebetween and movable in unison through the interconnection ofa coin, one of said slides having a projecting detent, a spring pressedlatch bar having a notch in its inner edge and pivotally movableinwardly to engage said detent, and movable laterally to release saiddetent through said notch.

11. In liquid dispensing apparatus, a spring pressed coin slide, adetent extending from said slide having an inclined cam face, and aninwardly spring pressed latching bar movable outwardly in contact withsaid cam face and having a groove in its inner edge to receive saiddetent.

12. In liquid dispensing apparatus, a spring pressed coin slide, adetent extending from said slide having an inclined cam face, aninwardly 75 spring pressed latching bar movable outwardly in contactwith said detent cam face and having a groove in its inner edge toreceive the detent,

said bar having an opening in its groove to release said detent upon thelateral deflection of the bar.

13. In liquid dispensing apparatus, a plurality of parallel coin slideseach having a projecting detent, the 'outer edges of said detents beingspaced at different distances beyond the line of said slides, and alatching bar common to all said detents and engageable with the furthestextending detent.

14. In a fluid dispensing mechanism, a drum having a peripheral wallwith a plurality of sockets therein and a plurality of studs indifferent sockets, each stud being of a different length, means torotate the drum on its axis, one rotation for each unit of the fluiddispensed and means to move the drum axially a unit distance for eachunit of fluid dispensed whereby in dispensing a plurality of units offluid the drum may complete a number of rotations and movelongitudinally a plural number of the unit distances, the said socketsbeing arranged to correspond to diiferent quantities of fluid atdifferent basic prices, atripping mechanism and means actuated therebyto stop the flow of the fluid, the said tripping mechanism having meansfor positioning the same to engage a short or a longer stud inaccordance with the quantity of fluid to be dispensed. O

15. In a commodity dispensing apparatus, the combination of a rotatableand bodily movable quantity registering device having a plurality ofstuds thereon positioned in accordance with the quantity of material tobe dispensed for a specific monetary value, a setting means havingdetents each corresponding to a monetary value, a latch device engagedby one of said detents, selectively, means to initiate the dispensing ofthe commodity -when one of the detents is engaged with said latch, meansto cause the rotation and the bodily movement of the quantityregistering device at a rate proportionate to the dispensing of thecommodity, the said detents and studs being respectively of such lengthsas to position the latch when engaged by a detent in a position to beengaged by a stud in the rotation of the registering device, the studbeing adapted to trip the latch and release the latch from a detent andmeans to move the setting device having the released detent and afurther means to discontinue the vending of the commodity.

16. In a commodity dispensing apparatus, the combination of a rotatableand axially movable drum having a stud thereon positioned in accordancewith the quantity of the commodity to be dispensed for a specificmonetary value, a setting device having means to accommodate a coincorresponding to the monetary value of the commodity to be dispensed,means to move said setting means, said setting means having a detentcorresponding to the monetary value of the coin accommodated in the saidsetting means, a latch device engaged by said detent when the settingmeans is moved to bring the detent and the latch device into engagement,means to initiate the dispensing of the commodity operative only whenthe detent and the latch are engaged, means to cause the rotation andbodily movement of the drum at a rate proportionate to the dispensing ofthe commodity, the said detent and stud being respectively of suchlength whereby the latch held by the detent is contacted by the stud,the

stud tripping the latch from the detent, means to return the settingmeans to its original position when its detent is released, means todiscontinue dispensing of the commodity and means to return the drum toits original position.

17. In liquid dispensing apparatus, the combination of a spring pressedlatch, and a rotatable tripping means therefor comprising a druinmounted for rotary and longitudinal movements simultaneously, and a stopon said drum engageable to move said latch at predetermined points inthe rotary and longitudinal movements of said drum.

18. In liquid dispensing apparatus, the combination with a springtensioned reciprocative coin slide including a detent, and a pivotallymounted latch engageable with said detent to retain the slide in itsadvanced position, of a rotatable shaft, means to actuate said shaft, adrum having a hub splined on said shaft formed with exterior screwthreads, a fixed nut in engagement with said hub, and a stop projectingfrom said drum to engage said latch to release said detent.

19. In liquid dispensing apparatus, an electrically driven pump, arotary meter device to measure the flow of liquid therethrough from saidpump, a rotatable shaft actuated by said meter, a drum having a hubsplined on said shaft and formed with exterior screw threads, and afixed nut in screw threaded engagement with said hub whereby said drumwill rotate with and simultaneously advance longitudinally of saidshaft.

20. In liquid dispensing shaft, a drum having a hub splined to saidshaft and formed with exterior screw threads, a fixed nut in screwthreaded engagement with said hub, and stop devices adjustably securedto the exterior wall of said drum.

21. In liquid dispensing apparatus, a rotatable shaft, a drum having ahub splined to said shaft and formed with exterior screw threads, afixed nut in screw threaded engagement with said hub, and stop devicesprojecting from the exterior wall of said drum and securable thereto inpositions spaced apart in lines parallel to the axis of rotation of thedrum distances equal to the distances between the pitch-lines of saidscrew threads.

22. In liquid dispensing apparatus, a rotatable shaft, means toactuatesaid shaft, a drum having a hub splined on said shaft formed withexterior screw threads, and a fixed nut in screw threaded engagementwith said hub whereby said drum will partake of the rotary motion andsimultaneously advance longitudinally of said shaft.

23. In a fluid dispensing mechanism, a drum having a cylindrical wallwith a plurality of vertical lines spaced thereabout to indicate onrotation of the drum a dispensing between one vertical line and anotherof a minor proportion of apparatus, a rotatable a gallon of liquid, thedrum also having a plurality of horizontal lines positioned at an equaldistance apart to represent in dispensing a travel of the drum bodily onits aXis a distance for one gallon corresponding to the space betweenadjacent horizontal lines, a series of sockets positioned in the drumcorresponding to various vertical and horizontal lines, there being asuflicient number of sockets to designate the vending of differentquantities of liquid at varying basic prices, a plurality of studs indifferent sockets, each stud being of a different length, means torotate the drum on its axis one rotation for each gallon of liquiddispensed and means to move the drum axially the distance between twoadjacent horizontal lines for each gallon of liquid dispensed whereby indispensing a number of gallons of liquid the drum may rotate a number oftimes and be moved longitudinally on its axis a distance equal to thatbetween a plurality of the horizontal lines, a tripping mechanism andmeans actuated thereby to stop the flow of liquid, the said trippingmechanism having means for positioning thesame to engage a short or alonger stud in accordance with the quantity of liquid to be dispensed.

24. In liquid dispensing apparatus, arotatable drum having a cylindricalwall provided with evenly spaced lines parallel to its axis of rotationand a plurality of spaced circumferential lines, means to rotate saiddrum, and means to move said drum bodily during such rotation, saidcircumferential lines being spaced apart the distance equal to thebodily movement of said drum in each revolution.

25. In liquid dispensing apparatus, a rotatable drum having acylindrical wall provided with evenly spaced lines parallel to its axisof rotation and a plurality of spaced circumferential lines, means torotate said drum, means to move said drum bodily during such rotation,said circumferential lines being spaced apart the distance equal to thebodily movement of said drum in each revolution, said drum having aplurality of sockets formed therein at the intersection of said lines,and a plurality of studs seated in said sockets and protruding from saidcylinder wall.

26. In liquid dispensing apparatus, a coin actuated setting devicehaving a detent, a, latch engaging said detent when the setting deviceis actuated, means to initiate the dispensing of the liquid operativewhen the detent and latch are engaged, a rotatable and axially movabledrum, means to cause the rotation and axial movement of the drum at arate proportionate to the dispensing of the liquid, a stud on said drumpositioned in accordance with the quantity of liquid to be dispensed,said stud tripping the latch in the rotative and axial movements of thedrum to release said detent, means to return the setting device to itsoriginal position, and means to discontinue the dispensing of theliquid.

27. In liquid dispensing apparatus, the combination of a spring pressedlatch, and a rotatable tripping means therefor comprising a drum mountedfor rotary and longitudinal movements simultaneously, and a stop on saiddrum engageable to move said latch at predetermined points in the rotaryand longitudinal movements of said drum, and means controlled bytripping of the spring pressed latch to stop the rotation of the drumand hence its longitudinal movement and means having a drivingconnection to the drum to reverse the rotation of the drum and reversethe longitudinal movement of the drum to return such drum to itsoriginal position.

28. In liquid dispensing apparatus, a rotatable shaft, a drum having ahub splined to said shaft and formed with exterior screw threads, afixed nut in screw threaded engagement with said hub and stop devicesadjustably secured to the exterior wall of said drum, 9, driving meansfor the said rotatable shaft including a clutch, means controlled bysaid stop devices to actuate said clutch to release the rotational driveof said shaft and means to urge and rotate said shaft in a reversedirection to reverse the rotation of the drum and hence reverselythreading the drum in relation to the fixed nut to return the drum toits original position.

EMIL C. BABER.

